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Device and method and program of text analysis based on change points of time-series signals

a technology of change points and time-series signals, applied in the field of devices, can solve the problems of not obtaining an overview of the transitions in a personal opinion or the interaction between opinions in the text-based discussion, and achieve the effect of more deeply understanding the discussion in a short tim

Active Publication Date: 2013-04-02
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention allows for a quick overview of changes in someone's opinion or how different opinions interact in a text-based discussion. This helps to better understand the discussion more quickly and easily.

Problems solved by technology

However, the related art obtains an overview of a tendency of the whole of a given text set, but may not obtain an overview of transitions in a personal opinion or an interaction between opinions in the text-based discussion.

Method used

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  • Device and method and program of text analysis based on change points of time-series signals
  • Device and method and program of text analysis based on change points of time-series signals
  • Device and method and program of text analysis based on change points of time-series signals

Examples

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Embodiment Construction

[0035]Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

[0036]FIG. 1 is a block diagram showing a configuration example of a text mining system according to an embodiment of the present invention. The text mining system 10 is, for example, composed of a bulletin board on the Internet and a web site for providing a Social Networking Service (SNS). In the bulletin board and the web site configuring the text mining system 10, a plurality of users may discuss, for example, a predetermined theme. The discussion is performed by describing a plurality of characters (by a sentence). That is, in the text mining system 10, text-based discussion is performed by the users.

[0037]The text mining system 10 is, for example, composed of a server connected to a network such as the Internet. In addition, the text mining system 10 may be composed of a plurality of servers connected to one another.

[0038]In this example, the text mining system...

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Abstract

A text analysis device includes a storage unit configured to store opinions of users who participate in a discussion about a predetermined theme as text data and author information for specifying authors of the text data, a feature quantity data generation unit configured to generate feature quantity data of the text data stored in the storage unit, an observation time-series signal generation unit configured to generate observation time-series signals based on information obtained by performing a predetermined process with respect to the feature quantity data, a change point detection unit configured to detect a change point of the discussion based on the observation time-series signals, and an influence specifying unit configured to specify an opinion having influence on an opinion corresponding to the specified text data out of opinions of the discussion based on the detected change point and the author information.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a text analysis device and method and a program, and, more particularly, a text analysis device and method of obtaining an overview of transitions in a personal opinion or interaction between opinions in a text-based discussion so as to more deeply understand the discussion in a short time, and a program.[0003]2. Description of the Related Art[0004]Recently, with development of information processing technology, for example, the opportunity to perform text-based discussions using an electronic bulletin board has increased. In such a case, a document in which an opinion of each user or the like is described is sequentially posted on the electronic bulletin board.[0005]It mostly takes much time to read all documents posted as the text-based discussion. In addition, opinions exchanged in such discussions change with time while influencing each other.[0006]Therefore, a technique of mining di...

Claims

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Application Information

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Patent Type & Authority Patents(United States)
IPC IPC(8): G06F15/18G06F17/30G06F19/00
CPCG06F17/2785G06F40/30
Inventor TAKAMATSU, SHINGO
Owner SONY CORP
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